Mower Deck Drive Belt Replacement - Ferris IS600ZB2544 Operator's Manual

10. Repeat the process for the other side of the unit.

Mower Deck Drive Belt Replacement

NOTICE To avoid damaging belt, do not pry over pulleys.
1. Park the unit on a smooth level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, turn
the ignition switch to OFF, and remove the ignition key.
2. Lower the mower deck to it's lowest cutting position and
remove the mower deck guards and floor pan to gain access
to the mower deck drive belt (A, Figures 50& 51).
50
51
3. 44" Models Only: Loosen the jam nut (M) on the eye bolt
(N) and then loosen the adjustment nut (O) to relieve the
majority of the tension exerted on the belt from the idler
arm.
WARNING
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring as the
idler arm is being rotated. Injury may result if the breaker bar
is prematurely released while the spring is under tension.
4. Using a 1/2" breaker bar (B, Figures 50& 51) place the
square end in the opening in the idler arm (C) and rotate
the idler arm clockwise, which will relieve tension on the
belt exerted from the idler arm. Remove the belt from the
left hand side spindle pulley (D). Pull the length of the belt
removed from the left hand spindle pulley towards the center
of the deck.
5. Rotate the idler arm clockwise so that it is pulled away
from the idler arm stop (L). To remove the belt from the belt
guide (E), start with the leg of the belt between the
adjustable idler pulley (F) and the PTO clutch pulley (G)
and press the belt down below the belt guide and then pull
it around and then above the belt guide. Carefully release
the tension on the breaker bar.
6. Remove the old belt from the front stationary idler pulley
(H), rear stationary idler pulley (I), and the remaining spindle
pulleys (J).
7. Install the new belt onto the right hand side and the center
spindle pulleys (J) and the PTO clutch pulley (G). Make
sure that the V-side of the belt runs in the pulley grooves
and that the belt is correctly routed through the PTO clutch
belt guide (K) and that the back side of the belt contacts
the faces of the front stationary idler pulley (H) and the rear
stationary idler pulley (I).
8. Rotate the idler arm clockwise so that it is pulled away
from the idler arm stop. To install the belt into the belt guide,
start with the leg of the belt between the adjustable idler
pulley and the PTO clutch pulley and raise the belt up into
the belt guide. Pull the length of belt towards the left hand
spindle pulley. Carefully release the tension on the breaker
bar.
9. Verify that the V-side of the belt runs in the grooves of the
right hand side and center spindle pulleys and the PTO
clutch pulley. Verify that the back side of the pulley contacts
the face of the adjustable idler pulley, front stationary idler
pulley, and the rear stationary idler pulley. Verify that the
belt is correctly routed through the belt guides.
10. Rotate the idler arm clockwise and install the belt on the
left hand spindle pulley.
11. Carefully release the tension on the breaker bar.
12. Set the mower deck to the 3-1/2" (8,9 cm) cutting height.
13. Use the Spring Length chart to determine the correct spring
length for your unit.
Deck Size
44"
48"
Spring Length
Measurement
7" (17,8 cm)
11" (27,9 cm)
33